The BGPCEP-590 fix [0] has removed it, even though it should have removed just the config subsystem part of it.

CSIT relying on data change counter are currently failing [1] on nitrogen due to this.

[0] https://git.opendaylight.org/gerrit/56010
[1] https://logs.opendaylight.org/releng/jenkins092/bgpcep-csit-1node-periodic-bgp-ingest-mixed-all-nitrogen/123/log.html.gz#s1-s2-t5-k2-k2-k1-k4-k7-k1